Support for electrical apparatus



eco 2%, 1925' vmuwa ET AL.

SUPPORT FOR ELECTRICAL APPARATUS Filed March 26,

Patented Dec. 29, 192250 "UNITE stares aren't caries.

HAROLD H. YOUNG AND EARLB A. RYDER, OF KEYIPORT, NEW JERSEY.

SUPPORT FOR ELECTRICAL APPARATUS.

Application filed March 26, 1924. Serial No. 702,033.

To all whom it may conecm:

Be it known that we. Harrow H. Yoinve and EARLE A. Rvnrn, both citizensof the Unit-d States, and residents of Kcyport, in the county ofMonmouth and State. of New Jersey, have invented certain ne and usefulImprovements in Supports for Electrical Apparatus, of which thefollowing is a specification, reference being had to the ac companyingdrawings forming part of this specification.

This invention relates to radio apparatus in general and morespecifically to the receiving type of radio systems known as multi-tubesets and in which a number of controlling or operating instruments areusually required.

The present invention features an im proved means by which amultiplicity of controlling or operating instruments may be formed intoa unitary assemblage, and a novel method of so grouping the same on asupporting member as form a compact selfcontained unit is hereindisclosed.

An object of the invention is to provide a means whereby the principalparts of a radio signalling apparatus such as variable condensers,vacuum tubes, coils, transformers etc., together with their connectingmembers or lead wires may be pro-assembled into a unit for laterintroduction-into a suitable case or cabinet.

It is one ofthe prime requisites for the eflicient operation of asignalling set especially where high frequency is employed, to reducethe length of the various connecting Wires to a minimum in order toeliminate stray fields and. undesirable capacity or magnetic coupling.

Therefore it is a further object of this invention to provide a meanswhereby such indielectic material, the vacuum tubes require each aseparate socket for support and operation.

To this end it. is a still further object of the present invention toprovide a simple inexpensive method of construction in which ordinarycommercially available material may be used to fabricate a support1for alnultirl'city of such instruments without resorting to the use ofexpensive dies or molds for forming sockets or other equipment of a likenature.

These various objects we achieve by employing a pair of supportingmembers readily constructed from standard material and in which no(lies, molds or special machinery are required to fabricate the same.

lVith the construction as herein disclosed it becomes possible to soposition the instruments relatively to one-another that the connectingwires may be short and direct and disposed so that they will be verylittle in evidence. It will be readily understood that with suchmaterial reduction in the length of the wiring system, stray couplingwill be greatly reduced or entirely climinated and the generalappearance much enhanced.

It has been customary in the past. when constructing an apparatus forradio signalling, to mount or secure each instrument individually to abase board or panel and to then establish the necessary connectionstherebetween. Such a procedure usually resulted in rather a complexwiring system which isobjectionable. Furthermore with the conventionalmanner of construction sub-assemblies are manifestly impracticable andsuch sets are usually completely assembled at one time.

lVith the form as herein shown and described We have provided a meanswhereby either a partial or a complete circuit may be assembled inadvance for attachment to a base board or panel at some future time.

Still another object of the invention is to provide supporting means forradio instruments in which the parts are of such construction as topermit of them being distributed to the trade in a knocked downdescribed nation an (i no features of novelty id/C1115 particularly inthe claims at the specincation.

in the tilrawingst-- Figure 1 isv a plan view of the invention.

Figure 2 is a front elevation.

Figure 3 is an end view of Figs. and 2 as looking from the right handend. i n he present instance 10 and 11 designates a pair of upstandingspaced apart nails preferably formed of dielect ic material such asbakelite and provided with a series of perforations 11 for the receptionof portions of the instruments to be mounted thereon.

A plurality of variable condensers 12 are disposed between the walls '10and 11 and secured thereto by means of the tie-bolts 13 which extendthrough the fixed plates of the condensers 12 and the perforations 11.

Alternately spaced with the condensers, provisions are made for thereception of a number of vacuum tubes, in which the trans verselydisposed rods 14 act in conjunction with the walls as a lateral supportfor the lower portion of the tubes 15. Springs 16 are secured to thewalls by the screws 17 and are of such construction as to make contactwith the tube terminals 18 when the tubes are inserted in theirrespective openings. A means for holding the tubes in a relativelyfixed, position with the springs 16 is provided by the'bayonet slots 19formed inthe wall 10 and adapted to receive the locking pin on the tube.

A; top plate or cover portion 20 may be provided to insure the properintroduction of the tubes with referenceto the springs 16 which wouldprevent the burning out of tubes by the inexperienced, or a metalferrule may be inserted between the walls for the same purpose; thisfeature is however optional and not actually necessary for the properfunctioning of the device.

To the wall 11 there is secured in any suitable manner as by the bolts13 a number of bosses 21 by which the'unit may be attached to a panel 22by means of the screws as shown.

On the exterior of the walls 10, 11 a number of other instruments may beaccommodated such as coils 28, transformers 24 and rheostats 25 andwhich can be secured in any preferred manner as by the brackets 29. V V

The filament lead wires 26, 27 are connected to the springs 16 as shownin Fig. 2 and are usually soldered. Other connections are madein asimilar manner as shown able cone which a lead 28 is bro 'p' the tiebolt to the s-ipr urdica" k, id terminal.

It W1 be seen from the drmvings that :1 number of instruments can beconvenieiuty ormed to a compact unit as hereinluriorc describec, .ndwhereas there is shown in the present ibodiment a plurality of ensersand tubes, it is to be um stood however that the invention is notrestricted in its scope to the exclusive use of such instruments asshown in'the drawings nor to the manner of their disposition relative to'one another. it will be appreciated that in radio apparatus employing amultiplicity of vacuum tubes it would be advantageous to form anexclusive tube supporting unit in the above described manner in whichany number of tubes may be disposed adjacent to one-another and asinilar unit constructed for the support of the condensers, etc. Thiswould eliminate numerous tube sockets and other expensive material. v

As a convenience-to those who wish to build their own the supportingmeans, comprising the walls suitably perforated to accommodate a varietyof instruments may be distributed commercially either singly or inpairs.

lVe have stated that the walls are preferably formed of dielectricmaterial; it is however considered within the scope of this invention toform said walls of metal or any electricallyconductive material and tosuitably insulate the instruments therefrom as by non-conductivebushings; in

fact a certain advantage may accrue in so,

constructing said walls and connecting them with a convenient groundwire. \Vhen formed of such material, the walls would act as a shield toprevent the effect of body capacity of the operator so annoying at timesduring the operation of a receiving set.

Variations may be resorted to within the I scope of the invention andportions of the improvements may be used without the others.

Having thus described our invention, we claim:

1. In a radio signalling apparatus, the

combination of a pair of flat elongated wall ill) l support variablecondensers, and the others of said tie members adapted to act inconjunction with said elongated members to form a lateral support forvacuum tubes.

In apparatus of the class described, a pair of flat wall portions of a'width substantially equivalent to the height of the cylindrical base ofa vacuum tube, said wall portions spaced apart in fixed rela tionssubstantially equal to the diameter of said base, spacing memberssecured to said walls and adapted toengage and sustain a plurality ofvacuum tubes in operative positions between said members.

I. In a radio signalling apparatus, the combination with variablecondensers and vacuum tubes, of a supporting means therefor, comprisinga pair of elongated walls spaced in fixed relation so as to permit ofthe introduction of thecondensers and tubes therebetween in manner sothat said Walls will form a latej al support for said tubes, tie meansCODIIGQJHQ' said walls. and resilient electrodes securejd to said wallsin a manner so .as to make contact with portions of the tubes.

5. In apparatus of the class described, the combination of a pair ofelongated members spaced apart in parallel, a plurality of tuning unitsdisposed between said walls and relatively spaced apart longitudinallythereof, tie means extending through said walls and said units, meansdisposed between said tuning units in a manner so as to form inconjunction with said walls a lateral support for vacuum tubes, suitableresilient electrodes secured to said walls in amanner so as to extendtherebetween for engagement with said tubes, and means for maintainingsaid tubes in a predetermined relation with said electrodes.

6. In apparatus of the class described, a supporting means for radioinstruments comprising in combination, .a pair of parallel elongatedwalls, means transversely disposed to maintain said walls in spacedrelation, said Walls so spaced apart as to provide for the introductionof a plurality of vacuum tubes therebetween in a manner so that saidWalls. will laterally engage and support the tubes, and means on said,walls for reinovably en gaging said tubes and. securing them in apredetermined position.

7. In apparatus of the class described, the combination of a pair ofelongated wall portions horizontally spaced apart, tie means adaptedtosupport variable condensers and to maintain said walls in a definitelyspaced relation, means adapted to co-act with said wall portions informing a lateral support for the lower portion of vacuum tubes, en-

gaging, means secured to said walls-adapted to make electrical contactwith the tube lcr nnnals, and means on said walls to insure apredetermined relation between said tubes and said engaging means,

8. In a radio instrument supporting unit, the combination with a panel,of a pair of elongated members spaced apart,- a plurality of variablecondensers supported therebe tween, tie bolts transversely disposed formaintaining said members in spaced relation, some of said tie bolts sospaced longitudinally of said members as to form in conjunctiontherewith a lateral support for vacuum tubes provided with terminals,elec trical contact means secured to said members and adapted to engagesaid terminals, means for removably engaging said tubes in apredetermined position, and means for securing the whole to the panel.

9. As a new article of manufacture, a radio instrument supporting unitcomprising, a pair of flat parallel upstandingwalls of elongatedformation spaced apart in fixed relation and adapted to receivetherebetween a plurality of tuning instruments and vacuum tubes In amanner so that said Walls will form end plates for said instruments anda lateral support for said tubes, and tie members coacting with saidwalls to .sustain said instruments and tubes in. operatively fixedrelation therewith. j

10. In a device of the class described, the combination of a pair ofspaced apart walls, tie means for holding said walls in relatively fixedrelation for the reception of a plurality of control instruments, saidtie means coacting with the walls in forming receptacles for theretention of one or more vacuum tubes ineffective relation with saidcontrol instruments. "3

11L The combination with a radio signal ling system, of a pair of spacedapart and relatively fixed sustaining members adapted f r the receptionof a plurality of control instruments, transversely disposed meansadapted to coact with said members for the lateral support of furtherinstruments, contact memberssecured to said walls to engage saidinstrument-s, electrical conductors secured to the contact members; andmeans to secure said sustaining members to a suitable support. j

12. In a device of the class described, the combination of supportingwall portions adapted to receive and form a lateral support for aplurality of vacuum tubes, en-

gaging means associated with said supporting wall portions forconnecting said tubes into their respective'circuits, and means on saidwalls adapted to insure a predetermined relation. of said tubes' to saidengaging means.

13. In a.device of the class described, the combination of a pluralityof variable condensers supported in spaced apart relation terminals onthe tubes to form electrical on common end walls of insulating material,connection therewith. 10 means transversely disposed of the Walls andSigned at Keyport in the county of Menadjacent to said condensersadapted to comouth and State of New Jersey this 20th act with said Wallsto form a lateral s'upday of March A. D. 1924:.

port for one or more vacuum tubes between said condensers, andresilientcontact means HAROLD H. YOUNG. secured to the Walls and adaptedto engage EARLE A. RYDER.

